“解放思想，实事求是”的思想路线是（） A.邓 * * 理论的主题 B.邓 * * 理论形成的历

（文科）某工厂要建造一个长方体的无盖贮水池，其容积为4800m³，深为3m，如果池底造价为每平方米150元，池壁每平方米造价为120元，怎么设计水池能使总造价最低？最低造价是多少？

根据图所示，回答下列问题：

（1）两个电源中低压电源是 _________ ，高压电源是 _________ ．

（2）控制电路是由 _________ 、低压电源和电键组成，工作电路是由电动机、高压电源和 _________ 组成．

（3）指出图中各部件的名称：

A _________ ，

B _________ ，

C _________ ，

D _________ ．

（4）要使甲电动机工作则应 _________ 电键S（选填“闭合”、“断开”）．

（5）当闭合电键S时， _________ 中有电流通过， _________ 被吸引，电动机 _________ 工作．

下列关于双卵双胎描述正确的是()

A．两个胎儿的基因相同

B．两个胎儿间的血液循环不相通

C．两个胎儿的血型相同

D．由两个卵子分别受精形成

E．两个胎儿的容貌不同

读写任务。

阅读下面的短文，然后按照要求写一篇150词左右的英语短文。

     "Depend on yourself"is what nature says to everyone. Parents can help you. Teachers can help you. Others

still can help you. But all these only help you to help yourself.

     There have been great men in history. But many of them were very poor in childhoods and no uncles, aunts

or friends to help them. Schools were few and not very good. They could not depend upon them for an

education. They saw how it was, and set to work with all their strength to know something. They worked their own way up to fame.

     One of the most famous teachers in England used to tell his pupils. "I can not make worthy men of you but

I can help you make men of yourself."

     But some young men tend to totally depend on others to help them out. They can never achieve much

unless they see their weak points and change their course. They are nothing now, and will be nothing as long as

they live, unless they accept the advice of their parents and teachers and depend on their own honest efforts.

     ［写作内容］ 1）以约30词概括短文的要点；

                            2）然后以约120词就“一切靠自己”的主题发表看法，并包括以下要点：

     a）表达你的论点；

     b）陈述你的理由；

     c）概括你的论点：应该如何依靠自己。

     ［写作要求］可以使用实例或其它论述方法支持你的论点，也可以参照阅读材料的内容，但不得直

接引用原文中的句子。

___________________________________________________________________________________________

___________________________________________________________________________________________

外墙防水施工时，进场的防水材料应（）；不合格的材料不得在工程中使用。